Plow.



P. A. POLZIN.

PLOW.

APPLICATION FILED MAY 28, 1913. 1,120,531 Patented Dec. 8,1914.

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FREDERICK A. POLZIN, OF AUDUBON, IOWA.

PLOW'.

Specification of Letters Patent.

Patemeanec. s, 19142.

Application filed May 28, 1913. Serial No. 770,337.

To all whom it may concern Be it known that I, FREDERICK ALBERT IoLziN, a citizen of the United States, residing at Audubon, in the county of Audubon and State of Iowa, have invented certain new and useful Improvements in Plows;

and'I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to plows generally and more particularly to detachable shares therefor.

The invention has for its object the provision of a means to quickly and reliably attach a plow point and share to a breaking or mold board plow or to detach it from the said plow.

Improved details in the construction and arrangement of the various parts of the invention will be apparent from the detailed description hereinafter when read in connection with the appended claims, reference being had to the accompanying drawings forming part thereof, in which,

Figure 1 is a side elevation of the plow illustrating in perspective the same with the present invention applied thereto. Fig. 2 is a fragmental sectional view showing the inner side of the land side of the plow with the fastening members for securing the share thereto. Fig. 8 represents a horizontal sec tional view on the line 3--8 of Fig. 2. Fig. #l represents a detailed perspective view of one of the fastening members of the plow point and share. Fig. 5 is a modified form of the fastening member shown in Fig. el. Fig. 8 is a perspective view of the plow point and share removed from the plow. Fig. 7 is a detailed fragmentary perspective view of the plow share illustrating a latch bar used in connecting the share to the mold board of the plow, and, Fig. S is a bottom view illustrating the fastening means between the share and mold board.

Referring to the drawings in detail wherein similar reference numerals designate corresponding parts throughout the several views, the numeral 1 indicates the beam of an ordinary or any preferred form of plow having the usual handles 2 and braces 3 therefor. The mold board l and land-side 7 are suitably fixed beneath the beam 1 in any conventional manner. A detachable point and share 6 is adapted to be carried i Y by the plow. The point and share comprises a rearwardly extending landside plate 5, which is adapted to engage against and be secured to the land side 7, and of the share 15 extending at an acute angleto the member 5, which is adapted to 'have its upper edge abut against the lower edge of a mold board 4Q of the plow and to be secured theretoli f A The rear portion of the land side 7 of the plow is outwardly offset as atS so thatthe rear end of landside plate 5 of the share will abut against the shoulder 8 to prevent rearwardmovement of the share when the saine is fastened in position upon the plow.

-The land side 7 of the plow is provided with an opening 9a to permit the free passage of the notched lug 9 inwardly from the landside plate 5 of the share. A wedgeshaped latch 10 is slidably mounted between the spaced guide lugs 22 on the inside por' tion of the landside 7. The forward end of said latch 10 is bifurcated to receive the notched lug 9, the bifurcation of said bar is inwardly tapered and is adapted to coperate with the incline walls of said notched lug which causes the landside plate 5 to be securely clamped against the landside 7 of the plow when the latch is moved in engagement with said notched lug.

l A lever 11 is pivoted to the rear end of the beam 1 and is provided at its upper end with a suitable handle 12, and is connected at its lower end by the link 13 to the wedge latch 10. The lever 11 is adapted to be secured in adjusted position by a suitable adjustment retaining device 14.

The share 15 of the detachable plow point and share is provided with an upstanding latch bar 16 which is secured at one end to the upward outer corner of the share 15 and upon its inner face. A recess 17 is provided in the lower end of the bar 16 for the reception of the hooked finger 18 of the keeper 19. Said keeper is also provided with a suitable recess 23, indicated by dotted lines, in the body portion thereof to accommodate the free end of the latch bar 16 which extends beyond the upper edge of the share 15.

The keeper 19 is formed with slots 21 in the body portion thereof, which are spaced from each other, and is secured to the mold board 4. by the bolts 20 which pass through saidk slots 21, thus forming ameans for readily n. LA 1 loosening the keeper 19 and permit of its removal from the slot 17 or 'replacing it 'in' locking position. It will be obvious that from the construe` tions set forth, the fastening members 16V the mold board l 'and the land side 7 and` will also admit of a quick and easy removal of the same therefrom.

From the foregoing 'it `will be apparent that I have provided a' detachable point for plows having means whereby the latter may be quickly and easily removed for repairs or attachedlfor use.

4 What I claim is v 1. In a detachable plow point, the herein described securing means to hold the point land mold board in operative relationship, comprising a notched lug carried by ya rear extension on the point, said lug being adaptedto extend through an opening in the land side ofthe plow; a link; a controlling lever and a movable securing member adapted to be drawn intov engagement with the inwardly directed end of said lug by said controlling lever and link.

2. The combination with a plow of means to hold the point in detachable, operative rep lationship with the moldnboard comprising a notched lug carried by ing part of the share, said notched lug adapted to extend through an opening in the landka rearwardly projectj slidably engage the said notched name to this specification in the presence of two subscribing witnesses.

FREDERICK Witnesses S. W. COCKRELL, C. S. FITZGERALD.

A. PoLZiN.

Copies of this patent may be obtained for Viive cents each, by addressing the Commissioner of Patents. n

Washington, D. C. 

